ABB DCS 500B Description page 22

Functional Software description
14
Messages, which may come up, if a SDCS-CON2 and DRIVE
_MODE = 3 [ARM. AUTOTUNING] autotuning of armature cur-
rent controller is used:
49 = IF AT START ?
50 = OHMIC LOAD
51 = IACT FEEDBACK
52 = CURRENT CURVE
53 = RUN COMMAND ?
54 = TOO HIGH SPEED
55 = INDUCTANCE
56 = CONT CURR LIM
57 = FIELD REMOVAL
58 = STOP COMMAND
Messages, which may come up, if a SDCS-CON2 and DRIVE
_MODE = 5 [FEX2/3 AUTOTUN] autotuning of field current
controller with FEX2 or DCF 503/4 is used:
60 = CANNOT AUTOTUNE The field current controller cannot be
61 = ILL START COND
Field current does not reach reference
within 10s, when the selftuning is
started
Ohmic load not determined
Current feedback is less than current
reference during measurement of ar-
mature resistance. Current limits are
lower than the limit for continous cur-
rent flow or lower than 20%.
Bad current curve. Fuse
blown,thyristor not firing or no motor
load.
Wrong starting conditions. The drive is
running when the autotuning is started
or run command is not given within 20
s after start of autotuning.
Too high speed during autotuning
.Speed greater than 1% or EMF grea-
ter than 15%.
Inductance cannot be determined. Fu-
se blown, thyristor not firing or no
motor load.
Limit for continous current flow cannot
be determined.
The field removal takes longer time
than 10 s.
Current regulator blocking or stop
command appears during autotuning.
set by this function
Illegal start condition for field autotu-
ning
DCS 500 Software Description